feat: can_redeem checks for enrollment deadline

enterprise_access/apps/api/v1/tests/test_subsidy_access_policy_views.py

@@ -30,6 +30,7 @@
     SYSTEM_ENTERPRISE_OPERATOR_ROLE
 )
 from enterprise_access.apps.subsidy_access_policy.constants import (
+    REASON_BEYOND_ENROLLMENT_DEADLINE,
     REASON_LEARNER_ASSIGNMENT_CANCELLED,
     REASON_LEARNER_ASSIGNMENT_FAILED,
     REASON_LEARNER_NOT_ASSIGNED_CONTENT,
@@ -2202,6 +2203,57 @@ def test_can_redeem_policy_no_price(self, mock_lms_client, mock_transactions_cac
             'detail': f'Could not determine price for content_key: {test_content_key}',
         }
 
+    @mock.patch('enterprise_access.apps.subsidy_access_policy.subsidy_api.get_and_cache_transactions_for_learner')
+    @mock.patch('enterprise_access.apps.api.v1.views.subsidy_access_policy.LmsApiClient')
+    def test_can_redeem_policy_beyond_enrollment_deadline(self, mock_lms_client, mock_transactions_cache_for_learner):
+        """
+        Test that the can_redeem endpoint successfully serializes a response for content whose
+        enrollment deadline has passed.
+        """
+        test_content_key = "course-v1:demox+1234+2T2023"
+        mock_lms_client.return_value.get_enterprise_customer_data.return_value = {
+            'slug': 'sluggy',
+            'admin_users': [{'email': '[email protected]'}],
+        }
+
+        self.mock_get_content_metadata.return_value = {
+            "content_price": 1234,
+            "enroll_by_date": '2001-01-01T00:00:00Z',
+        }
+
+        mock_transactions_cache_for_learner.return_value = {
+            'transactions': [],
+            'aggregates': {
+                'total_quantity': 0,
+            },
+        }
+
+        mocked_content_data_from_view = {
+            "content_uuid": str(uuid4()),
+            "content_key": test_content_key,
+            "source": "edX",
+            "content_price": 1234,
+            "enroll_by_date": '2001-01-01T00:00:00Z',
+        }
+
+        with mock.patch(
+            'enterprise_access.apps.subsidy_access_policy.content_metadata_api.get_and_cache_content_metadata',
+            return_value=mocked_content_data_from_view,
+        ):
+            query_params = {'content_key': test_content_key}
+            response = self.client.get(self.subsidy_access_policy_can_redeem_endpoint, query_params)
+
+        assert response.status_code == status.HTTP_200_OK
+        response_list = response.json()
+        assert response_list[0]["reasons"] == [
+            {
+                "reason": REASON_BEYOND_ENROLLMENT_DEADLINE,
+                "user_message": MissingSubsidyAccessReasonUserMessages.BEYOND_ENROLLMENT_DEADLINE,
+                "metadata": mock.ANY,
+                "policy_uuids": [str(self.redeemable_policy.uuid)],
+            },
+        ]
+
     @mock.patch('enterprise_access.apps.subsidy_access_policy.subsidy_api.get_versioned_subsidy_client')
     def test_can_redeem_subsidy_client_http_error(self, mock_get_client):
         """

enterprise_access/apps/api/v1/views/subsidy_access_policy.py

@@ -37,6 +37,7 @@
 from enterprise_access.apps.events.utils import send_subsidy_redemption_event_to_event_bus
 from enterprise_access.apps.subsidy_access_policy.constants import (
     GROUP_MEMBERS_WITH_AGGREGATES_DEFAULT_PAGE_SIZE,
+    REASON_BEYOND_ENROLLMENT_DEADLINE,
     REASON_CONTENT_NOT_IN_CATALOG,
     REASON_LEARNER_ASSIGNMENT_CANCELLED,
     REASON_LEARNER_ASSIGNMENT_FAILED,
@@ -224,6 +225,7 @@ def _get_user_message_for_reason(reason_slug, enterprise_admin_users):
         REASON_LEARNER_MAX_SPEND_REACHED: MissingSubsidyAccessReasonUserMessages.LEARNER_LIMITS_REACHED,
         REASON_LEARNER_MAX_ENROLLMENTS_REACHED: MissingSubsidyAccessReasonUserMessages.LEARNER_LIMITS_REACHED,
         REASON_CONTENT_NOT_IN_CATALOG: MissingSubsidyAccessReasonUserMessages.CONTENT_NOT_IN_CATALOG,
+        REASON_BEYOND_ENROLLMENT_DEADLINE: MissingSubsidyAccessReasonUserMessages.BEYOND_ENROLLMENT_DEADLINE,
         REASON_LEARNER_NOT_ASSIGNED_CONTENT: MissingSubsidyAccessReasonUserMessages.LEARNER_NOT_ASSIGNED_CONTENT,
         REASON_LEARNER_ASSIGNMENT_CANCELLED: MissingSubsidyAccessReasonUserMessages.LEARNER_ASSIGNMENT_CANCELED,
         REASON_LEARNER_ASSIGNMENT_FAILED: MissingSubsidyAccessReasonUserMessages.LEARNER_NOT_ASSIGNED_CONTENT,
@@ -768,7 +770,7 @@ def can_redeem(self, request, enterprise_customer_uuid):
                     enterprise_customer_uuid, lms_user_id, content_key
                 )
 
-            if not redemptions and not redeemable_policies:
+            if not successful_redemptions and not redeemable_policies:
                 reasons.extend(_get_reasons_for_no_redeemable_policies(
                     enterprise_customer_uuid,
                     non_redeemable_policies

enterprise_access/apps/subsidy_access_policy/constants.py

@@ -93,6 +93,8 @@ class MissingSubsidyAccessReasonUserMessages:
     LEARNER_LIMITS_REACHED = "You can't enroll right now because of limits set by your organization."
     CONTENT_NOT_IN_CATALOG = \
         "You can't enroll right now because this course is no longer available in your organization's catalog."
+    BEYOND_ENROLLMENT_DEADLINE = \
+        "You can't enroll right now because the enrollment deadline for this course has passed."
     LEARNER_NOT_IN_ENTERPRISE = \
         "You can't enroll right now because your account is no longer associated with the organization."
     LEARNER_NOT_ASSIGNED_CONTENT = \
@@ -104,6 +106,7 @@ class MissingSubsidyAccessReasonUserMessages:
 REASON_POLICY_EXPIRED = "policy_expired"
 REASON_SUBSIDY_EXPIRED = "subsidy_expired"
 REASON_CONTENT_NOT_IN_CATALOG = "content_not_in_catalog"
+REASON_BEYOND_ENROLLMENT_DEADLINE = "beyond_enrollment_deadline"
 REASON_LEARNER_NOT_IN_ENTERPRISE = "learner_not_in_enterprise"
 REASON_LEARNER_NOT_IN_ENTERPRISE_GROUP = "learner_not_in_enterprise_group"
 REASON_NOT_ENOUGH_VALUE_IN_SUBSIDY = "not_enough_value_in_subsidy"

enterprise_access/apps/subsidy_access_policy/content_metadata_api.py

@@ -7,6 +7,7 @@
 
 import requests
 from django.conf import settings
+from django.utils.dateparse import parse_datetime
 from edx_django_utils.cache import TieredCache
 from requests.exceptions import HTTPError
 
@@ -125,3 +126,13 @@ def list_price_dict_from_usd_cents(list_price_integer_cents):
         "usd": list_price_decimal_dollars,
         "usd_cents": list_price_integer_cents,
     }
+
+
+def enroll_by_datetime(content_metadata):
+    """
+    Helper to return a datetime object representing
+    the enrollment deadline for a content_metdata record.
+    """
+    if enroll_by_date := content_metadata.get('enroll_by_date'):
+        return parse_datetime(enroll_by_date)
+    return None

enterprise_access/apps/subsidy_access_policy/models.py

@@ -27,6 +27,7 @@
 from .constants import (
     CREDIT_POLICY_TYPE_PRIORITY,
     FORCE_ENROLLMENT_KEYWORD,
+    REASON_BEYOND_ENROLLMENT_DEADLINE,
     REASON_CONTENT_NOT_IN_CATALOG,
     REASON_LEARNER_ASSIGNMENT_CANCELLED,
     REASON_LEARNER_ASSIGNMENT_EXPIRED,
@@ -46,6 +47,7 @@
     TransactionStateChoices
 )
 from .content_metadata_api import (
+    enroll_by_datetime,
     get_and_cache_catalog_contains_content,
     get_and_cache_content_metadata,
     get_list_price_for_content,
@@ -686,7 +688,11 @@ def _log_redeemability(self, is_redeemable, reason, lms_user_id, content_key, ex
         )
         logger.info(message, self.uuid, is_redeemable, reason, lms_user_id, content_key, extra)
 
-    def can_redeem(self, lms_user_id, content_key, skip_customer_user_check=False):
+    def can_redeem(
+        self, lms_user_id, content_key,
+        skip_customer_user_check=False, skip_enrollment_deadline_check=False,
+        **kwargs,
+    ):
         """
         Check that a given learner can redeem the given content.
         The ordering of each conditional is intentional based on an expected
@@ -732,7 +738,13 @@ def can_redeem(self, lms_user_id, content_key, skip_customer_user_check=False):
             self._log_redeemability(False, REASON_CONTENT_NOT_IN_CATALOG, lms_user_id, content_key)
             return (False, REASON_CONTENT_NOT_IN_CATALOG, [])
 
-        # TODO: Add Course Upgrade/Registration Deadline Passed Error here
+        # Check if the current time is beyond the enrollment deadline for the content,
+        # but only if late redemption is *not* currently allowed.
+        if not skip_enrollment_deadline_check and not self.is_late_redemption_allowed:
+            enrollment_deadline = enroll_by_datetime(content_metadata)
+            if enrollment_deadline and (timezone.now() > enrollment_deadline):
+                self._log_redeemability(False, REASON_BEYOND_ENROLLMENT_DEADLINE, lms_user_id, content_key)
+                return (False, REASON_BEYOND_ENROLLMENT_DEADLINE, [])
 
         # We want to wait to do these checks that might require a call
         # to the enterprise-subsidy service until we *know* we'll need the data.
@@ -1115,14 +1127,22 @@ class Meta:
         """
         proxy = True
 
-    def can_redeem(self, lms_user_id, content_key, skip_customer_user_check=False):
+    def can_redeem(
+        self, lms_user_id, content_key,
+        skip_customer_user_check=False, skip_enrollment_deadline_check=False,
+        **kwargs,
+    ):
         """
         Checks if the given lms_user_id has a number of existing subsidy transactions
         LTE to the learner enrollment cap declared by this policy.
         """
         # perform generic access checks
         should_attempt_redemption, reason, existing_redemptions = \
-            super().can_redeem(lms_user_id, content_key, skip_customer_user_check)
+            super().can_redeem(
+                lms_user_id, content_key,
+                skip_customer_user_check, skip_enrollment_deadline_check,
+                **kwargs,
+            )
         if not should_attempt_redemption:
             return (False, reason, existing_redemptions)
 
@@ -1185,7 +1205,11 @@ class Meta:
         """
         proxy = True
 
-    def can_redeem(self, lms_user_id, content_key, skip_customer_user_check=False):
+    def can_redeem(
+        self, lms_user_id, content_key,
+        skip_customer_user_check=False, skip_enrollment_deadline_check=False,
+        **kwargs,
+    ):
         """
         Determines whether learner can redeem a subsidy access policy given the
         limits specified on the policy.
@@ -1195,6 +1219,8 @@ def can_redeem(self, lms_user_id, content_key, skip_customer_user_check=False):
             lms_user_id,
             content_key,
             skip_customer_user_check,
+            skip_enrollment_deadline_check,
+            **kwargs,
         )
         if not should_attempt_redemption:
             self._log_redeemability(False, reason, lms_user_id, content_key, extra=existing_redemptions)
@@ -1356,7 +1382,11 @@ def get_list_price(self, lms_user_id, content_key):
         # that value has been consumed from a subsidy (though not necessarily fulfilled)
         return list_price_dict_from_usd_cents(found_assignment.content_quantity * -1)
 
-    def can_redeem(self, lms_user_id, content_key, skip_customer_user_check=False):
+    def can_redeem(
+        self, lms_user_id, content_key,
+        skip_customer_user_check=False, skip_enrollment_deadline_check=False,
+        **kwargs,
+    ):
         """
         Checks if the given lms_user_id has an existing assignment on the given content_key, ready to be accepted.
         """
@@ -1365,6 +1395,8 @@ def can_redeem(self, lms_user_id, content_key, skip_customer_user_check=False):
             lms_user_id,
             content_key,
             skip_customer_user_check,
+            skip_enrollment_deadline_check,
+            **kwargs,
         )
         if not should_attempt_redemption:
             self._log_redeemability(False, reason, lms_user_id, content_key, extra=existing_redemptions)
@@ -1731,7 +1763,7 @@ def force_redeem(self, extra_metadata=None):
         try:
             with self.subsidy_access_policy.lock():
                 can_redeem, reason, existing_transactions = self.subsidy_access_policy.can_redeem(
-                    self.lms_user_id, self.course_run_key,
+                    self.lms_user_id, self.course_run_key, skip_enrollment_deadline_check=True,
                 )
                 extra_metadata = extra_metadata or {}
                 if can_redeem: